5. Compute a linear least-squares-fit of the calibration data and plot the resulting line on the same graph as the calibration data. Comment on the linearity of the pressure transducer and scannivalve. Part 3: Calibration of the Tunnel 1. Connect the micromanometer (calibrated in Part 2) across the wind-tunnel contraction in order to measure the static pressure drop.
The value of the force constant for the spring is most nearly (A) 0.33 N/m (B) 0.66 N/m (C) 6.6 N/m (D) 33 N/m (E) 66 N/m 4. A block of weight W is pulled along a horizontal surface at constant speed v by a force F, which acts at an angle of with the horizontal, as shown above. The normal force exerted on the block by the surface has magnitude (A) W F cos (B) WFsin (C) W (D) W + Fsin (E) W + Fcos 5. When the frictionless system shown above is accelerated by an applied force of magnitude the tension in the string between the blocks is (A) 2F (B) F (C) F (D) F (E) F 6. A push broom of mass m is pushed across a rough horizontal floor by a force of magnitude T directed at angle as shown above.
The following equation represents this relationship where k denotes the spring constant or stiffness of the spring, F=-kx Since x symbolizes the displacement or change in the length of the spring the above equation can now be surmised in the following manner, F=mg=-k∆l This new form makes it evident that a linear proportion exists between the plot of F as function of changing in length, ∆, thus confirming the spring does in fact obey Hooke’s Law. This enabled the group to determine the spring constant k. B. Derivation of Equations Definitions To gain a better understanding of the terms used here
In this case, dry river sand was used. The shear strength is directly related to the angle of internal friction. From plotting shear stress versus horizontal displacement for different vertical confining stresses, the maximum shear stress for each can be obtained. After several trials, a plot of maximum shear stress versus vertical (normal) confining stress is produced. A straight line approximation for the Mohr-Coulomb failure envelope can then be drawn.
Physics 1408 Section E1 Standing Waves in a Vibrating Wire Callie K Partner: Miguel E Date Performed: March 20, 2012 TA: Raziyeh Y Abstract This lab had two purposes. The first was to determine the relationship between the length of a stretched wire and the frequencies at which resonance occurs. The second was to study the relationship between the frequency of vibration and the tension and linear mass density of the wire. In the first part we found the resonance, frequency and wavelength of a wire and used this data to calculate the speed of the traveling waves. For first harmonic, our wavelength was 1.200 m, found by the formula λ=2L/n.
In order to figure this out, the weight was recorded by putting the objects on a balance scale. Also, each object had a specific equation to help figure out the volume. The 100 mL graduated cylinder was weighed by putting it on the balance scale. After pouring water inside of the graduated cylinder, that was also weighed. Next there was a metal that was used and the weighed.
Next we will chart the data and form two different plots. The first plot will be actual temperature as a function of time. The second chart will be excess temperature as a function of time. On the second chart I will place an exponential trendline showing the equation of the line. Using this equation I can determine the cooling time constant for the block of steel.
MATERIALS AND METHODS Measurement of Threshold Stimulus 1. Dependent Variable is the contraction force 2. Independent Variable is the stimulation voltage 3. Controlled Variables are the muscle fiber length, temperature, freq of stimulation. Effect of Muscle Length on Contraction 1.
Write the goal of the labs on levers and pulleys or the question you tried to answer. Answer: To see how changing the relative position of the fulcrum affects the effort force required to lift an object. (3 points) |Score | | | 2. Which observations, experiences, or
Aim of experiment (1.1) The aim of this experiment is to show that the force exerted by a jet of fluid striking onto an object is equivalent to the rate of change of momentum in the jet. It is possible to observe the shape of the fluid after the impact with the flat plate. Apparatus (1.2) Impact of a jet apparatus Steady water supply with a flow control valve A flat plate Set of calibrated weights Stop watch Theory of experiment (1.3) In this experiment the rate of change is calculated directly from the change in momentum rate of the fluid before the fluid hits the plate and after the fluid hits the plate. This is a diagram of the straight plate and what will happen as the fluid impacts on the plate. Before the impact of the fluid onto the plate, the fluid is in line with the x-axis, as shows by the velocity vector labeled V1.